CN2390972Y - Automatic protective door lock - Google Patents

Abstract

The utility model discloses an automatic protective door lock which can be used safely and conveniently, compared with the existing door lock which can be unlocked after is rotated for a plurality of circles by a key with a lot of time and labor and is forgotten to be locked easily. The utility model comprises a lock shell, a cover plate, a main tongue, an upper tongue, a lower tongue, an internal and an external locking heads, a lock opening and a lock closing control mechanisms, and is characterized in that each control mechanism is composed of a push plate, a swing stem, a three head stem, an energy storage tongue and four springs. The utility model can be locked automatically when the door is closed without using a key; when the door is opened, the key is rotated to an angle to open the lock without too much time and labor; when people go out, the door can only be opened by the key to open the lock, so the key can not be left at home. Therefore, the utility model relates to a safety door lock which can be used safely and conveniently.

Description

The automatic protecting door lock

The utility model relates to lock, particularly a kind of automatic protecting door lock.

Present Safety door lock at closing time, has only and pays a tongue locking, and main tongue, go up tongue, sublingua need use a few Zhou Caineng lockings of key turns, has so both wasted time and energy, and is cumbersome, leaks easily again and locks, and stays hidden danger.

The purpose of this utility model provides Safety door lock a kind of both safe and reliable and easy to use.

Structure of the present utility model is such, it comprises lock housing (13), cover plate (30), main tongue (12), last tongue (7), sublingua (24), in, outer tapered end and opening, the locking controlling organization, feature is that described mechanism is by push pedal (11), fork (27), three head rods (20), energy storage tongue (21) and four springs (3), (2), (16) and (17) form, wherein push pedal, fork and three head rods are located at anchor post (9) respectively versatilely, (26) and on (19), the energy storage tongue is located on the fixed bearing (25) versatilely, fork one end is slidingly matched by the trough with straight angle (8) in pin (4) and the push pedal, the other end and energy storage tongue are inner to flexibly connect three head rods and main tongue, last tongue, the corresponding site engagement of sublingua.

Providing specific embodiment below by accompanying drawing comes the utility model structure is done to describe further.

Fig. 1, Fig. 2 are the utility model structural representations.What Fig. 1 showed is locking states, and Fig. 2 shows the opening of lock;

Fig. 3 is the A-A sectional view;

Fig. 4 is outer tapered end installation drawing;

Fig. 1, Fig. 2 represent the structure that lock housing (13) is inner, referring to Fig. 1 or Fig. 2, main tongue (12), go up on anchor post (9) that tongue (7) and sublingua (24) be located at lock housing respectively versatilely, (22) and (18); (20) be three head rods, it is located on the anchor post (19) versatilely, and three statures respectively with main tongue, the breach engagement of going up tongue and sublingua; (21) expression energy storage tongue, it is located on the fixed bearing (25) versatilely, and is provided with spring (17) between bearing and tongue (15); Fork (27) is located on the anchor post (26) versatilely, and its lower end is flexibly connected by the pin (29) of slot (28) with energy storage tongue the inner; (11) expression push pedal, it and main tongue are located on the same pillar (9), its rear end has the trough with straight angle (8) and the pin (4) of fork upper end to be slidingly matched, push pedal is connected with three springs, the other end of its medi-spring (3) is fixed on the lock housing pillar (1), spring (16) other end is connected on the boss (10) of main tongue, and spring (2) other end is connected on the pillar (26) of fork; Inner lock head is located on the lock housing, (23) expression inner lock head shift fork; Referring to Fig. 4, outer tapered end is contained on the cover plate (30), cover plate is located on pillar (9), (19) and (26), the position of outer tapered end is relative with inner lock head, outer tapered end shift fork (31) is also relative with inner lock head shift fork (23), referring to Fig. 3, the main tongue of this lock has three identical column caps (14) again, and the energy storage tongue has an oblique tongue (15).

Fig. 2 is this lock opening figure.From Fig. 2 as seen, main tongue, last tongue, sublingua is indentation, the tongue of energy storage tongue is stretched in the lock housing outside, at closing time, the energy storage tongue heads on doorframe and the back-pressure that is subjected to doorframe just slowly is moved to the left, and make fork do swing clockwise, thereby the promotion push pedal moves right and back-moving spring (3) and (16), main tongue spring-loaded also moves right and pushes up doorframe, in case door leaf closes and to put in place, when promptly each dead bolt was all aimed at dead bolt hole on the doorframe, three column caps (14) of main tongue advanced in the dead bolt hole with regard to bullet at once, main tongue drives three head rods simultaneously and clockwise rotates, thereby makes also while locking of tongue and sublingua.Fig. 1 is the locking states figure of this lock.When opening the door, angle of key turns, push pedal is stirred in shift fork (23) or (31), make pin (4) slip away trough with straight angle vertical position and when aligning horizontal position, push pedal has been removed resistance immediately and just has been moved to the left under the effect of spring (3), lug on it (6) retracts main tongue at once with the lug (5) of main tongue, and simultaneously, three head rods rotate counterclockwise and upper and lower tongue is also withdrawn immediately.Open door leaf after lock is opened, the energy storage tongue ejects to the right down in spring (17) effect, and the drive fork makes counter-clockwise swing, and spring (2) retracts push pedal, and pin (4) enters the vertical position of trough with straight angle again.

The utility model is closed the door and can be realized comprehensive automatic blocking without key, will not leak lock; Inject key, need only rotate an angle and can open all dead bolts, so more time saving and energy saving; And when going out, must open the lock with the key and just can go out, so can not leave behind key.

In sum, the utlity model has simple in structure, safe and reliable, use the province that saves time Power, advantage easily. It is a kind of preferably Safety door lock really.

Claims (3)

1, a kind of automatic protecting door lock, it comprises lock housing (13), cover plate (30), main tongue (12), last tongue (7), sublingua (24), in, outer tapered end and opening, the locking controlling organization, feature is that described mechanism is by push pedal (11), fork (27), three head rods (20), energy storage tongue (21) and four springs (3), (2), (16) and (17) form, wherein push pedal, fork and three head rods are located at anchor post (9) respectively versatilely, (26) and on (19), the energy storage tongue is actively installed on the fixed bearing (25), three head rods and main tongue, last tongue, the corresponding site engagement of sublingua, fork one end is slidingly matched by the trough with straight angle (8) in pin (4) and the push pedal, and the inner of the other end and energy storage tongue flexibly connects.

2, automatic protecting door lock according to claim 1 is characterised in that its main tongue (14) is a cylindricality, and energy storage tongue (15) is oblique.

3, automatic protecting door lock according to claim 1 and 2 is characterised in that fork one end is by pin (29) sliding connection of slot (28) with energy storage tongue the inner.

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